31232213031120 has 80 divisors (see below), whose sum is σ = 97516406258880. Its totient is φ = 8268672218112.

The previous prime is 31232213031113. The next prime is 31232213031133. The reversal of 31232213031120 is 2113031223213.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×31232213031120² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468075349 + ... + 468142068.

It is an arithmetic number, because the mean of its divisors is an integer number (1218955078236).

Almost surely, 2^{31232213031120} is an apocalyptic number.

31232213031120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31232213031120 is an abundant number, since it is smaller than the sum of its proper divisors (66284193227760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31232213031120 is a wasteful number, since it uses less digits than its factorization.

31232213031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936217572 (or 936217566 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31232213031120 its reverse (2113031223213), we get a palindrome (33345244254333).

The spelling of 31232213031120 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred thirteen million, thirty-one thousand, one hundred twenty".